A white box penetration test, or a glass box or clear box penetration test, is a type of test in which the information and details regarding the target system, network, or application are fully shared by the client, such as the login credentials of the systems, the SSH/Telnet login for the network devices, and the application source code that needs to be tested. Since the information retrieved from the client regarding their system, network, or application is highly sensitive, it is recommended that you have all the information in an encrypted format.